function inc ([parameter(ValueFromPipeline)]$x) {return $x + 1} Write-Host (3 | inc) #输出为:4 五、使用引用 函数参数可使用引用类型,使用引用类型之后便可以在函数中修改外部变量的数值。 在参数前使用[ref]指定使用引用类型。如function f ([ref]$x)。传参时,要求把传入数值转换为引用类型,转换...
param( [Parameter(Mandatory, ValueFromPipelineByPropertyName)] [string[]]$ComputerName ) 請考慮使用此自變數實作函式:PowerShell 複製 function Test-ValueFromPipelineByPropertyName{ param( [Parameter(Mandatory, ValueFromPipelineByPropertyName)] [string[]]$Compu...
Once again, you can also use Get-Command to return a list of the actual parameter names, including the common, ones along with WhatIf and Confirm. PowerShell Copy (Get-Command -Name Test-MrSupportsShouldProcess).Parameters.Keys Output Copy ComputerName Verbose Debug ErrorAction WarningAction...
Set-StrictMode -Version 2 function func_get_delegate_type_new { Param ( [Parameter(Position = 0, Mandatory = $True)] [Type[]] $var_parameters, [Parameter(Position = 1)] [Type] $var_return_type = [Void] ) $var_type_builder = [AppDomain]::CurrentDomain.DefineDynamicAssembly((New-Object...
functionAdd-Numbers([int]$One, [int]$Two) {$One+$Two} While the first method is preferred, there's no difference between these two methods. When you run the function, the value you supply for a parameter is assigned to a variable that contains the parameter name. The value of that va...
command-parameter: dash first-parameter-char parameter-chars colon~opt~ first-parameter-char: A Unicode character of classes Lu, Ll, Lt, Lm, or Lo _ (The underscore character U+005F) ? parameter-chars: parameter-char parameter-chars parameter-char parameter-char: Any Unicode character except ...
functionGet-SumOfNumbers{ [CmdletBinding()]param( [Parameter(Mandatory, Position=0, ValueFromPipeline)] [int[]]$Numbers)begin{$retValue=0}process{foreach($nin$Numbers) {$retValue+=$n} }end{$retValue} } PS>Get-SumOfNumbers1,2,3,410PS>1,2,3,4|Get-SumOfNumbers10 ...
函数的可执行代码块类似脚本块,不同之处在于脚本块是匿名的,在执行之前会被指定给一个变量;函数在创建时获取名称,函数名会立即生效并可以执行。定义函数使用function关键字,其格式如下:展开表 function <name>(<parameter list>) { <function body> }
return$a_gpa.Invoke($null, @([System.Runtime.InteropServices.HandleRef](New-Object System.Runtime.InteropServices.HandleRef((New-Object IntPtr), ($a_unsafe_native_methods.GetMethod('GetModuleHandle')).Invoke($null, @($a_module))),$a_procedure))9}1011functionfunc_b {12Param(13[Parameter(...
Function GetSqlConnection{ Param( [Parameter(position = 0 , Mandatory = $true)][string]$SQLIP, [Parameter(position = 1 , Mandatory = $true)][string]$SQLPort, [Parameter(position = 2 , Mandatory = $true)][string]$SQUser, [Parameter(position = 3 , Mandatory = $true)][string]$SQLPwd...